Final Exam Study Guide

Front

What is the ratio of birds to all animals if there are 3 birds for every 18 animals?

Back

3 to 18

Front

20% of what number is 13?

Back

65

Front

Evaluate when a = 15: 2(a - 5) + 2

Back

22

Front

If there are 5 boys and 7 girls, what is the ratio of girls to boys?

Back

7 to 5

Front

A letter that represents a number is called a _____?

Back

variable

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Front

How do you convert a percentage to a fraction?

Back

To convert a percentage to a fraction, divide the percentage by 100 and simplify if possible.

Front

What is the formula for finding the percentage of a number?

Back

Percentage = (Part/Whole) x 100.

Front

What does the term 'variable' mean in mathematics?

Back

A variable is a symbol used to represent an unknown value.

Front

What is the difference between a coefficient and a constant?

Back

A coefficient is a number that multiplies a variable, while a constant is a fixed value that does not change.